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Joe Donor said he has delivered his semen to women in Queensland, southern Victoria, Adelaide and Sydney.

He claimed to have had sexual intercourse with half of the women he visited on his trip around Australia.

But he was doubtful that he may have unknowingly contracted a sexually transmitted disease on his travels.

"The theoretical risk that someone could have a disease which has symptoms which no one could see or feel … it all sounds very theoretical to me," Joe said.

During the interview, Hayes appeared to become irritated by Joe's cavalier attitude towards his work, suggesting he was risking women's lives deliberately.

"No I'm not, I'm helping women achieve their dreams. No one has become sick," Joe said.

According to Joe, the real risk is that "a woman will die a spinster without a child".

The reporter bit back, stating: "The real risk is that you're totally deluded."

At several times throughout the interview, the conversation became heated, as Hayes made repeated remarks that Joe Donor could be infected with an STD.

"You could be infected and not know it," Joe said.

But Hayes was quick to retaliate, saying "I'm talking about you Joe, I'm not donating, you are."

TOOLS OF THE TRADE

The self-proclaimed sperm donor took Hayes to his hotel room, where he laid out his tools he has brought with him to Australia, including a syringe to "aspirate the sperm" as well as a cup or zip lock bag to collect the semen.

Joe's job is literally 'baby-making', a skill he advertises on Facebook to women all over the world.

"Like any artist … they take pride in their work and they want to produce more work," Joe said.

"If you compose music you want to produce more songs, I think it's very normal to want to do your job well and to want to do it often."

But he claimed the best way for him to do his 'job' was via natural insemination, or sexual intercourse, which he says accounts for almost half of his transactions.

During a follow up interview with Joe, Hayes claimed the American donor was on a "narcissistic power trip".

"I don't even know what that means," Joe replied.

"Doesn't surprise me," Hayes shot back.

Chloe Allworthy is terrified to date men her age for fear they could be her brother. Photo / Supplied

CHLOE ALLWORTHY

Chloe Allworthy was conceived from a sperm donor and told 60 Minutes she was extremely uncomfortable with Joe Donor's practice.

She has spent many years uneasy at the thought that the next man she has sex with could turn out to be her biological sibling.

As one of 16 sperm donor siblings, the 29-year-old has made contact with her biological father and eight of her siblings, but said she is incredibly uncomfortable that she doesn't know who the others are.

"I don't even really want to date people within my age range, because I'm so afraid that they're gonna be my brothers," she said.

Chloe said she was scared that, at some point, she could develop a condition known as "Genetic Sexual Attraction".

This occurs when two people are attracted to each other, but remain unaware that they are actually biologically linked.

"If you're meeting someone like that for the first time and you don't know that they're a sibling, you could possibly think, "Wow. There's that connection there," but not realise the connection is a sibling bond," Chloe said.

But according to Joe, GSA between his biological children wasn't his problem.

"This is the choice that their mother made," he said.

"Women make their own reproductive choices. Haven't you fought for that? You now have those rights,

"I'm just the tool by which this happens."

His comments upset Chloe, who described him as a narcissist.

"I really would urge Joe … to please reconsider, because people like myself and the donor-conceived community will be outraged by this," she said.

"It's just really unfortunate that he hasn't thought through what impact that will have on us, on the donor-conceived people born from this."

Melbourne IVF Clinic medical director Lyndon Hale said while the practice of backdoor sperm donations was fraught with risk, he understood why some women would approach Joe Donor for his services.

"The desire to have a baby is intense for some people, and this is probably one area where you could make really good decisions and really dumb decisions," Dr Hale said.

Joe Donor believes he is a hero to women across the world. Photo / 60 Minutes